Best Selling Products

Our Best Selling Products category features the most popular and trusted water testing solutions chosen by professionals and everyday users alike. From quick and easy test kits to advanced meters and reagents, these products have earned their place as customer favourites for their reliability, accuracy, and ease of use. Whether you’re testing pool water, drinking water, or industrial systems, these top picks deliver the dependable results you can count on.

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4198 products

Lamotte WaterLink Spin Touch
Hach 1118 Glass containers w/ caps, 1.9 L, set of 8
Hach Retainer for (24) 350 mL glass bottles
Hach Distributor w/ arm for 2, 4 and 8 bottle standard base and 8 bottle compact base
Hach Universal probe stand for Standard Intellical ProbesHach Universal probe stand for Standard Intellical Probes
Hach SL1000 Portable Parallel Analyser (PPA)Hach SL1000 Portable Parallel Analyser (PPA)
Hach USB + Power Module for 2100Q/2100Q IS & DR 1900Hach USB + Power Module for 2100Q/2100Q IS & DR 1900
Hach 2100Q Portable Turbidimeter (EPA), 0-1000 NTUHach 2100Q Portable Turbidimeter (EPA), 0-1000 NTU
HACH 2100Q IS Portable Turbidimeter (LED), 0-1000 FNUHACH 2100Q IS Portable Turbidimeter (LED), 0-1000 FNU
Hach DR900 Robust portable datalogging colorimeterHach DR900 Robust portable datalogging colorimeter
Hach Test kit, alkalinity, model AL-DT
Hach Intellical MTC101 Laboratory Low Maintenance Gel Filled ORP/RedOx Electrode, 1 m Cable
Hach Intellical CDC401 Laboratory 4-Poles Graphite Conductivity CellHach Intellical CDC401 Laboratory 4-Poles Graphite Conductivity Cell
Hach Intellical PHC281 Water Quality Laboratory Refillable pH Electrode, 1 m CableHach Intellical PHC281 Water Quality Laboratory Refillable pH Electrode, 1 m Cable
Save £11.15
Hanna Instruments HI-2930B/5 AmpHel® ORP Electrode with Internal Battery
Hach Phosphate Reagent Powder Pillows 0.02-2.50mg/L PO₄Hach Phosphate Reagent Powder Pillows 0.02-2.50mg/L PO₄
Hach CyaniVer 4 Cyanide Reagent Powder Pillows, 10 mL, pk/100
IDEXX 5ml Sterile, Disposable Pipettes (25 pack)
Save £16.64
Hanna Instruments-772 Marine Alkalinity (dKH) Checker HC ClearanceHanna Instruments-772 Marine Alkalinity (dKH) Checker HC Clearance
Save £20.64
Hanna Instruments HI-7014 Free Chlorine Checker Expired reagentsHanna Instruments HI-7014 Free Chlorine Checker Expired reagents
HACH Test kit, chloride, model CD-DT
Save £102.10
Lovibond MD 200 Chlorine, pH, Cyanuric acid, Alkalinity-m, Copper, Iron, tablet reagents (OTZ)Lovibond MD 200 Chlorine, pH, Cyanuric acid, Alkalinity-m, Copper, Iron, tablet reagents (OTZ)